I've had 3 Sarrs for two full growing seasons (2008 and 2009) - Sarracenia x Catesbaie, Judith Hindle (sold as Dana's Delight..oops), and a Purpurea ssp Venosa.
They grow outdoors with about 6 hour of sunlight per day (partially under a maple tree that blocks out some of the direct sunlight - that maple tree was cut down in September though so they get full sun now).
They also grow right beside a slew of venus flytraps that flower like mad all through the growing season.
All of my Sarr's are extremely healthy and toss up huge pitchers; the first two divided twice each this year and the Purp divided once. Yet, no flowers, and they're now going dormant.
What's goin' on here?